40307256017 has 4 divisors (see below), whose sum is σ = 46065435456. Its totient is φ = 34549076580.

The previous prime is 40307256007. The next prime is 40307256019. The reversal of 40307256017 is 71065270304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40307256017 - 2⁸ = 40307255761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40307256019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2879089709 + ... + 2879089722.

It is an arithmetic number, because the mean of its divisors is an integer number (11516358864).

Almost surely, 2^40307256017 is an apocalyptic number.

It is an amenable number.

40307256017 is a deficient number, since it is larger than the sum of its proper divisors (5758179439).

40307256017 is an equidigital number, since it uses as much as digits as its factorization.

40307256017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758179438.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 40307256017 in words is "forty billion, three hundred seven million, two hundred fifty-six thousand, seventeen".